Which motor is used in CD drive? The majority of work in a CDROM drive is handled by 3 DC motors: The tray motor; the lens sled motor: and the spindle motor (Fig 3). These
Which motor is used in CD drive?
The majority of work in a CDROM drive is handled by 3 DC motors: The tray motor; the lens sled motor: and the spindle motor (Fig 3). These motors are supplied with 5 to 12volts from the Driver board. When the control board needs these motors to engage, it sends a 5volt signal to the driver board.
What is Wave drive stepper motor?
A stepper drive is the driver circuit that controls how the stepper motor operates. Stepper drives work by sending current through various phases in pulses to the stepper motor. There are four types: wave drives (also called one-phase-on drives), two-phase on, one-two phase-on drives and microstepping drives.
Does DVD have dc motor?
There are no motors in a CD or a DVD. There are 2 motors in the DVD/CD drive, one to spin the disc at up to 7 000 RPM and the other to drive the heads across the platter. As other have pointed out, there are brushless DC or stepper motors.
What is stepper motor is in a CDROM drive?
Here’s an example of a typical sled motor http://robocup.idi.ntnu.no/wiki/images/c/c6/PL15S020.pdf Note that it only does 20 steps per revolution. The small size and low cost of a CDROM motor mean that you can’t expect high resolution from the motor.
Why are micro-steps important for stepper motor?
Because one step on full-step control can be divided to a number of micro-steps. This increases resolution of step motor. A number of divided micro-steps can be specified via command. You can refer more here https://www.phpoc.com/support/manual…php?id=use_set
Can a Arduino drive a bipolar stepper motor?
The four control inputs (1,2,3,4) can be driven with Arduino‘s digital pins (i.e. 2,3,4,5) directly. The following program illustrates how to signal the four leads of a bipolar stepper motor for it to rotate. Of course, there’s already a stepper motor library built for this purpose.
How many transistors are in a bipolar stepper motor?
The following schematic shows a simple dual H-bridge using eight general purpose transistors (2N3904 and 2N3906). Given the maximum current of roughly 200mA, this circuit can be used to drive a small bipolar stepper motor operating between 5V and 12V, such as the stepper motors found in most floppy drives and CD / DVD drives.